I
OH
– HIGH LEVEL OUTPUT CURRENT – µA
V
CC
= 5.5 V
V
O
= 5.5 V
V
E
= 2 V
V
F
= 0.8 V
10
60
V
CC
= 5 V
V
E
= 2 V
V
OL
= 0.6 V
I
F
= 3.5 mA
I
F
– INPUT FORWARD CURRENT – mA
15
I
OL
– LOW LEVEL OUTPUT CURRENT – mA
80
100.0
10.0
T
A
= 85 °C
1.0
40
T
A
= 40 °C
T
A
= 25 °C
5
20
0.1
0
-60 -40 -20
0
20
40
60
80 100
0
-60 -40 -20
0
20
40
60
80 100
0.01
1.0
I
F
+
V
F
–
1.1
1.2
1.3
1.4
1.5
V
F
– FORWARD VOLTAGE – V
T
A
– TEMPERATURE – °C
T
A
– TEMPERATURE – °C
Figure 4. Typical High Level Output
Current vs. Temperature.
Figure 5. Low Level Output Current
vs. Temperature.
HCPL-261A fig 5
V
OL
– LOW LEVEL OUTPUT VOLTAGE – V
Figure 6. Typical Diode Input
Forward Current Characteristic.
5.0
V
O
– OUTPUT VOLTAGE – V
0.6
V
CC
= 5.5 V
V
E
= 2 V
I
F
= 3.0 mA
I
O
= 16 mA
I
O
= 12.8 mA
0.4
4.0
R
L
= 350
Ω
R
L
= 1 kΩ
0.5
3.0
2.0
R
L
= 4 kΩ
1.0
0.3
I
O
= 9.6 mA
0
0
0.5
1.0
1.5
2.0
I
O
= 6.4 mA
0.2
-60 -40 -20 0 20 40
60
80 100
I
F
– FORWARD INPUT CURRENT – mA
T
A
– TEMPERATURE – °C
Figure 7. Typical Output Voltage vs.
Forward Input Current.
Figure 8. Typical Low Level Output
Voltage vs. Temperature.
HCPL-261A/261N
PULSE GEN.
Z
O
= 50
Ω
t
f
= t
r
= 5 ns
I
F
1
V
CC
8
+5 V
2
INPUT
MONITORING
NODE
R
M
7
0.1 µF
BYPASS
R
L
OUTPUT V
O
MONITORING
NODE
3
6
*C
L
4
GND
5
*C
L
IS APPROXIMATELY 15 pF WHICH INCLUDES
PROBE AND STRAY WIRING CAPACITANCE.
I
F
= 3.5 mA
I
F
= 1.75 mA
t
PHL
OUTPUT
V
O
t
PLH
INPUT
I
F
90%
10%
90%
V
OH
10%
V
OL
1.5 V
t
rise
t
fall
Figure 9. Test Circuit for t
PHL
and t
PLH
.
1-175
OPTOCOUPLERS
AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
